Improvement in raking attachments for harvesters



UNITEDv STATES PATENT Ormea.

ALBERT E. MGGAUGEIEY, OF RED NVING, MINNESOTA.

IMPROVEMENT IN RAKING ATTACHMENTS FOR HARVESTERS.

Specification forming part of Letters Patent No. 41,522, dated February 9, 18d-l.

this specitication, in which--' Figure l is a plan or top view ot' my invention 5 Fig. 2, a side sectional view of the same, taken in the line x 00,'Fig. l; Fig. 3, a detached view of the rake-revolving mechanism. v

Sn ilar letters of reference indicate correspon( ing parts inthe several figures.

To enable those skilled in the art to fully lunderstand and construct my invention, I will proceed to describe it.

Arepresents the platform ot' a harvester, supported by wheels, one of which, B, drives the rake-operating mechanism. At the grain end ofthe platform the dividerl or separator O is secured, and at the opposite end there is secured a curved or segment guard, D, the curvature of which corresponds with the sweep ot' the rake.

On the outer end of the axle a of the wheel B there is placed a crank, E, to which one end of a rod, F, is connected, the opposite end ot' said rod being attached to an arm, G, which is on one end of a shaft, H, underneath the back part of the platform A. On the opposite end of the shaft H there is placed a toothed segment or sector, I, which passes up through a slot in the platform A and gears into a wheel, J, on a vertical shaft, K, the latter having two arms, c' a, attached to it, in which the rakehead L is fitted. The rake-head Lis of cylindrical form, and is allowed to turn freely in the arms a a. 1t has an inclined position, as shownin Fig. 2, and is provided with a series of teeth, b, which extend down nearly to the patform. The shaft K is the center from which the rake-head works, and theformer is at the back part of the platform near the grain end, as shown .in Fig. 1.

-Un the platform A, near the' shaft Kand concentric with it, there is secured a segmentrack, M, into which apinion, N, gears, thelatter being placed loosely onthe rake-head L, and on the rakehead, between the ends of the arms a a, there are permanently secured two heads or bosses, c c', in which slide-rods d d work. These rods are curved or bent at their inner ends, so as to form eyes c, which encompass the rake-head L and slide vfreely thereon, Between these eyes e c, and upon the rakehead L, thereiis placed a spiral spring, 0, which has a tendencyT to keep the rods d dforced apart and their outer ends in contact-one,d, with a notched plate, j', attached to the pinion N, and the other, d', with a notched stationary plate, j", attached to the outer end of the arm a, which supports the rake-head, as shown clearly in Figs. 2 and 3.

The operation is as follows: As the machine is drawn along a reciprocating partially-rotating` movement is communicated to the shaft H from the axle a through the medium of the crankE, connecting-rod F, and arm G, and an oscillating movement is consequently given the toothed segment or sector l, which actuates the pinion N and gives a reciprocating partially-rotatin g movement to the vertical shaft K and causes the rake to sweep back and forthV over the platform A from the divider or separator C to the back end of the former. When the rake moves toward the back end of the plat-form the teeth b of the former are down, so as to sweep or rake off the grain, the rake-head L being prevented from turning in the arms a a" in consequence of the outer end of the'slide-rod d' bearing against-the notch ax of the plate f', attached to the arm a, and during this movement of the rake the other rod, d, bears against the notched platefofthe pinion N, said plate rotating with` the pinion and causing its notch aX X to come directly behind the. rod d as the rake reaches the termination of its backward and working movement, and upon the return movement of the rake the notch a* X catches against the rod d and causes the rake-head L to rotate under the action ot' the pinion N, said rake-head making one entire revolution as it moves to the divider, and causing the teeth b to move upward and over the rake-head, so as to be ont of the way of the grain which falls upon the platform during thet'orward movement of the rake. i/Vhen the ra ke reaches its forward position, so as to commence its backward or working movement, the notch a* X does not act against the rod d, but leaves it as the pinion N turns in a reverse direction as the rake moves toward the back end ofthe platform, while the rod d will catch against the notch a* of the plate f to hold the movement-to wit., the rock-shaft H, provided teeth b in proper position. with a toothed segment, I, the rack M on the Thus by this simple means I obtain an eftiplatform wheel J on shaft K, with the pinion cient automatic raking device, one which op- N, bosses c c' on rake-head L, slide-rods d d',

crates Wit-l1 but little friction and in a perfect and notched plates ff', all arranged to opermanner. are substantially as and fortlie purpose speci- Having thus described my invention, what I ed.

claim as new, and desire to secure by Letters P ALBERT E. MCGAUGHEY.

aient, 1s-

The means employed for moving the rake l lVitnesses: in the arc ot'a circle forward and back over the i Y JAMES H. PARKER, platform, and rotating the rake during said JACOB H. ROSE. 

